Solve 0 = -2*z + 5*t, -2*z - t = -0*t - 12 for z.

5

Solve -f = 3*a + 17, -8 = 4*f - 0*f for a.

-5

Solve 5*d - 30 = 0, -20*s = -17*s - 5*d + 18 for s.

4

Solve -2*y + 16*w - 8 = 18*w, 4*y - 2*w + 4 = 0 for y.

-2

Solve -5*r + 48 = 4*j - 0*j, 3*r - 2*j - 20 = 0 for r.

8

Solve -q = -2*d - 9, 2*q + 2 = 2*d + 10 for q.

-1

Solve 3*q + 22 = k, -7 = k + q - 9 for k.

7

Solve 4*w + w + 3*z + 7 = 0, -2*w - z = 3 for w.

-2

Solve -2*d = 5*j - 0*d + 35, 4*d = -j - 25 for j.

-5

Solve -v - 7 = -2*z, -3*z + 8 = -z for v.

1